What’s the “tap tap” in the 6th panel supposed to be? Is that a syringe? Are they vaccinating the dog? What is going on on the picture level?

My thought exactly. I checked: John Glenn was the first US-American to orbit the Earth (3 times), only after Yuri Gagarin completed just over one full orbit and Gherman Titov even 17 times, in the year before Glenns flight.

read that again 🚬

“nipple mouse”

Don’t forget the Double-U for the letter D. It’s an absolute mess.

…but only in Sharknado.